Discovery Grid Alternatives

Second Life is a virtual reality platform where individuals interact in a virtual world. The software was developed in 2003 by Linden Labs. More than one million people now regularly use the software.

Shop and browse The Sansar Store, the official marketplace for the internet's leading social VR platform. Buy or sell items for your avatars, virtual reality worlds, and more.

Activeworlds hosts a Universe of over 500 3D virtual reality worlds.

Create and play in virtual worlds with others

IMVU is multiplayer online video game created by ‘IMVU Inc’.

Hobbo is also known as ‘Hobbo Hotel’.

Explore, play, and create in Facebook's ever-expanding VR world.

Kitely is an enhanced OpenSim metaverse of virtual worlds. Graphically superior, and the world you create is portable and can be backed up locally to your machine!

A WebVR experiment from Mozilla Mixed Reality

Imagine a virtual world where you, the user, are an integral part of its evolution, where you can...

Vircadia is an open-source and decentralized real-time VR creation platform for university, enterprise, social, and OpenSim users.

open-source

Democratized augmented reality platform: AR for everyone!

Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.